Zollo is one of the many Brave Companions who remain behind at Harrenhal after several failed foraging runs. He is present when Brienne is thrown into the bear pit and raises his whip when Jaime comes back to save her, but Vargo orders him to stand down.[3]

A Feast For Crows

While in Harrenhal, Jaime thinks to himself that the Stranger may have made off with Vargo Hoat before he could get around to him, but fat Zollo is still out there, with Shagwell, Rorge, Faithful Urswyck, and the rest.[4]